Let's all let out the deep breaths we've been holding in anticipation of the G.I. Joe sequel (wouldn't it be great if this was actually a G.I. Jane sequel? Wait, would it? We'll never know!). Yes, it is here and it looks, I don't know, violent? Action packed? Explosive? It's certainly got all the trimmings of a summer blockbuster flick. There's a ninja sword fight on the face of a mountain. Cue the exclamation points.